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Cephalexin

An oral cephalosporin antibiotic for common bacterial infections.

Clinical information

Common uses

  • respiratory tract infections
  • middle ear infections
  • skin and bone infections
  • urinary and genital infections

Common side effects

  • diarrhoea
  • feeling sick or being sick
  • indigestion
  • stomach pain

Cautions

  • not for people allergic to cephalosporin antibiotics
  • diarrhoea can signal C. difficile infection
  • lower dose needed with kidney problems (seizure risk)

Interactions

  • metformin (diabetes medicine) — low blood sugar risk
  • probenecid — not recommended together
  • can cause false-positive urine glucose tests

Pregnancy: no drug-linked risk identified in decades of use

Reference information, not medical advice — always follow your doctor or pharmacist. Source: DailyMed, dailymed.nlm.nih.gov, cephalexin capsule label, setid 864d2046-b2c8-415c-814b-512bc4901c76 (accessed 2026-08-16)

Approved brands & formulations19

Brand nameDosage formStrengthImporterCategory
Blucef pTablet125 mgauthorized medicine importersPOM
CefexCapsule500 mgauthorized medicine importersPOM
CefexCapsule250 mgauthorized medicine importersPOM
CephadexCapsule250 mgauthorized medicine importersPOM
CephalexinOral Liquid125mg/5 mlPOM
CephalexinCapsule500 mgauthorized medicine importersPOM
CephalexinOral Liquid250mg/5mlPOM
CephalexinTablet125 mgPOM
CephalexinCapsule250 mgPOM
Cephalexin IpOral liquid ( Oral Drops - Paediatric )100mg / ml (6g/100ml bottle)POM
CephastCapsule500 mgauthorized medicine importersPOM
CephastOral Liquid125mg/5 mlauthorized medicine importersPOM
Cephast - 250 CapsulesCapsule250mgauthorized medicine importersPOM
CeporexOral Liquid125mg/5ml 100mlauthorized medicine importersPOM
Pharmaniaga CephalexinCapsule500mgDial Trade & Travels Pvt LtdPOM
Safexin- 125Oral Liquid125 mg / 5 mlauthorized medicine importersPOM
Sepexin 500Capsule500 mgauthorized medicine importersPOM
UphalexinCapsule500 mgauthorized medicine importersPOM
UphalexinCapsule250 mgauthorized medicine importersPOM
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